Merge pull request #5122 from Tyriar/tyriar/main_document #13

Job	Run time
lint	3m 35s
build	1m 19s
test-integration (18, ubuntu, chromium)	3m 44s
test-integration (18, ubuntu, firefox)	3m 55s
test-unit (18, ubuntu)	1m 53s
test-integration (18, ubuntu, webkit)	3m 14s
test-unit (18, macos)	4m 13s
test-unit (18, windows)	6m 51s
test-unit-coverage	1m 3s
release-dry-run (18)	2m 3s
	31m 50s

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